Bump httpclient from 2.8.3 to 2.9.0

Bumps [httpclient](https://github.com/nahi/httpclient) from 2.8.3 to 2.9.0.
- [Changelog](https://github.com/nahi/httpclient/blob/master/CHANGELOG.md)
- [Commits](nahi/httpclient@v2.8.3...v2.9.0)

---
updated-dependencies:
- dependency-name: httpclient
  dependency-version: 2.9.0
  dependency-type: indirect
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Gemfile.lock

@@ -61,12 +61,14 @@ GEM
     fourflusher (2.3.1)
     fuzzy_match (2.0.4)
     gh_inspector (1.1.3)
-    httpclient (2.8.3)
+    httpclient (2.9.0)
+      mutex_m
     i18n (1.8.10)
       concurrent-ruby (~> 1.0)
     json (2.5.1)
     minitest (5.14.4)
     molinillo (0.8.0)
+    mutex_m (0.3.0)
     nanaimo (0.3.0)
     nap (1.1.0)
     netrc (0.11.0)